If you pay wages for work performed in the District of Columbia, DC withholding tax registration is handled by filing the Combined Business Tax Registration (Form FR-500) electronically through MyTax.DC.gov. The form sets up your withholding account and generates the account number you need to file returns and remit tax. The obligation starts with the first paycheck, so register before your first employee’s start date rather than after.
Who Has to Register
D.C. Code § 47-1812.08 requires every employer paying wages to deduct and withhold District income tax from those payments.1D.C. Law Library. District of Columbia Code 47-1812.08 – Withholding of Tax There is no minimum-dollar threshold. If you pay someone for work done inside D.C., you withhold.
Where your business is based does not change this. A Virginia-headquartered company with employees commuting into a D.C. office has the same registration duty as a business sitting on K Street. Overseas employers with D.C.-based workers are on the same footing.
Independent Contractors Are Outside This
Withholding applies to employees, not independent contractors, so a business that uses only true contractors does not register for withholding on their account. The distinction turns on control: a worker who sets their own hours, uses their own equipment, and serves multiple clients looks like a contractor, while a worker whose daily routine you dictate looks like an employee regardless of what the contract calls them. Misclassifying to avoid withholding creates real liability, so if the control test is close, treat the worker as an employee.
What to Gather Before You Start
The FR-500 asks for everything in one sitting. Missing a piece means stalling or restarting, so pull these together first:
- Federal Employer Identification Number (FEIN). Apply through the IRS first if you don’t have one. Sole proprietors without employees may use their Social Security Number.
- Business address — your physical location in the District.
- Owner and officer information: names, titles, home addresses, and Social Security Numbers or ITINs for the proprietor, all partners, or principal corporate officers.
- Legal business name and any trade names. Trade names must be registered with the Department of Licensing and Consumer Protection before you file.
- The date wages begin — the actual or expected first payday for D.C. work. This sets the start of your tax liability.
- Fiscal year-end date, to align your reporting periods.
Corporations, LLCs, limited partnerships, and nonprofits must also have articles of incorporation or organization on file with the DCRA Corporations Division.2Office of the Chief Financial Officer. Combined Registration Application for Business DC Taxes/Fees/Assessments Get the wage start date right. Entering a date later than when wages actually began can draw retroactive penalties once OTR identifies the gap.
Filing the FR-500 on MyTax.DC.gov
From the MyTax.DC.gov homepage, select the option to register a new business, which opens the FR-500.3Office of Tax and Revenue. New Business Registration Enter the information above and select which District taxes apply to your business. Withholding is one of several options on the form, so make sure the withholding box is checked before you submit.
You should receive a confirmation that OTR has your application, and once it’s approved you’ll get a withholding tax account number. That number goes on every return and every payment. Do not wait for the number to start withholding from paychecks: your legal duty to withhold begins when wages are paid, not when the paperwork clears.
Collecting the Employee Forms You Need
Registering with OTR is only the employer side. You also need the right form from each employee to calculate how much to withhold.
Form D-4 for D.C. Residents
Every new employee who lives in D.C. and is subject to District income tax must complete Form D-4, the D.C. Withholding Allowance Certificate, and give it to you to keep on file.4Government of the District of Columbia Office of Tax and Revenue. DC Withholding Allowance Certificate – Form D-4 The D-4 is separate from the federal W-4. If an employee claims 10 or more exemptions, or you have reason to believe the form contains false information, send a copy to OTR’s Compliance Administration.
Employees must file a new D-4 within 10 days if their allowances go down. To claim full exemption from D.C. withholding, the employee must meet the District’s criteria and also qualify for exempt status on the federal W-4.4Government of the District of Columbia Office of Tax and Revenue. DC Withholding Allowance Certificate – Form D-4
Form D-4A for Nonresidents
D.C. has reciprocity with Maryland and Virginia. An employee who lives outside D.C. and keeps a permanent residence elsewhere can file Form D-4A, the Certificate of Nonresidence, to avoid D.C. withholding entirely.5Government of the District of Columbia. Certificate of Nonresidence in the District of Columbia To qualify, the employee must live outside D.C. for the entire tax year and not spend 183 or more days in the District during the year. Spouses of military service members also qualify.
If a nonresident employee later becomes a D.C. resident, they must file a D-4 to replace their D-4A so you can begin withholding.5Government of the District of Columbia. Certificate of Nonresidence in the District of Columbia Either way, you need one form or the other for every employee. No form on file means you should withhold D.C. tax by default.
What Happens After You’re Registered
OTR assigns a filing frequency based on your annual withholding liability. Smaller employers file quarterly on Form FR-900Q; larger employers file monthly on Form FR-900M. The quarterly schedule generally applies to employers with annual withholding under $5,000. All withholding returns are filed electronically through MyTax.DC.gov.6Office of the Chief Financial Officer – Office of Tax and Revenue. Employer/Payor Withholding Tax – Reporting Instructions
At year-end, every employer files the FR-900B annual reconciliation return and transmits copies of all employee W-2s to OTR. Both are due by January 31 of the following year. OTR matches the total you reported withholding during the year against the amounts on the W-2s, so keep your periodic filings consistent with payroll throughout the year.
Closing the Account When You Stop Paying D.C. Wages
If you stop paying wages in D.C. or close the business, file a final withholding return on MyTax.DC.gov and check the box marked “Is this your final return?”6Office of the Chief Financial Officer – Office of Tax and Revenue. Employer/Payor Withholding Tax – Reporting Instructions Do this at the time operations cease, not at the end of the quarter. An open account still generates filing deadlines, and missing them triggers the same penalties as if tax were owed. File the final return, submit any remaining W-2s, and close the account.